web admin: incorrect display for a date after 2038

[nqb]

Describe the bug
If you generate a certificate for 7500 days (~20 years) using a PacketFence PKI template, frontend doesn't display correctly resulting date even if certificate contains correct date.

I assume this is because date is after 2038.

To Reproduce
Steps to reproduce the behavior:

1. Create a CA in PacketFence PKI
2. Create a template with 7500 days as Validity
3. Generate a certificate using template

Screenshots

Expected behavior
Resulting date should be display.

Additional context
Even if it's only a display issue, you're not sure your certificate is valid. You have to download it and verify by hand if date is correct which is painful.

5000 days works.

[satkunas]

Waiting on #5843 before resolving.

[fdurand]

The date in the db is stored as zero (valid_until: 0000-00-00 00:00:00) it looks to be an issue with the version of golang we are using (golang/go#36654)

[fdurand]

After talking to the team , we will probably need to limit the validity of a certificate to a maximum of 825 days (https://support.apple.com/en-ca/HT210176). @satkunas is it possible to limit the validity field in the form (CA and profile) ?

[julsemaan]

@satkunas will limit the validity in the frontend for the CA and the profile